diff --git a/src/all/background_page/controller/crypto/getUserPrivateKeyController.js b/src/all/background_page/controller/crypto/getUserPrivateKeyController.js
new file mode 100644
index 00000000..322ab13f
--- /dev/null
+++ b/src/all/background_page/controller/crypto/getUserPrivateKeyController.js
@@ -0,0 +1,63 @@
+/**
+ * Passbolt ~ Open source password manager for teams
+ * Copyright (c) Passbolt SA (https://www.passbolt.com)
+ *
+ * Licensed under GNU Affero General Public License version 3 of the or any later version.
+ * For full copyright and license information, please see the LICENSE.txt
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright (c) Passbolt SA (https://www.passbolt.com)
+ * @license       https://opensource.org/licenses/AGPL-3.0 AGPL License
+ * @link          https://www.passbolt.com Passbolt(tm)
+ * @since         4.3.0
+ */
+
+import Keyring from "../../model/keyring";
+import i18n from "../../sdk/i18n";
+import GpgKeyError from "../../error/GpgKeyError";
+import GetPassphraseService from "../../service/passphrase/getPassphraseService";
+
+class GetUserPrivateKeyController {
+  /**
+   * GetUserPrivateKeyController constructor
+   * @param {Worker} worker
+   * @param {string} requestId uuid
+   */
+  constructor(worker, requestId, account) {
+    this.worker = worker;
+    this.requestId = requestId;
+    this.keyring = new Keyring();
+    this.getPassphraseService = new GetPassphraseService(account);
+  }
+
+  /**
+   * Wrapper of exec function to run it with worker.
+   *
+   * @returns {Promise<void>}
+   */
+  async _exec() {
+    try {
+      const armoredEncryptedPrivateKey = await this.exec();
+      this.worker.port.emit(this.requestId, "SUCCESS", armoredEncryptedPrivateKey);
+    } catch (error) {
+      console.error(error);
+      this.worker.port.emit(this.requestId, 'ERROR', error);
+    }
+  }
+  /**
+   * Returns the current user's armored private key after requesting its passphrase.
+   *
+   * @returns {Promise<string>}
+   */
+  async exec() {
+    await this.getPassphraseService.requestPassphrase(this.worker);
+    const keyring = new Keyring();
+    const privateKeyInfo = keyring.findPrivate();
+    if (!privateKeyInfo) {
+      throw new GpgKeyError(i18n.t('Private key not found.'));
+    }
+    return privateKeyInfo.armoredKey;
+  }
+}
+
+export default GetUserPrivateKeyController;
diff --git a/src/all/background_page/controller/crypto/getUserPrivateKeyController.test.js b/src/all/background_page/controller/crypto/getUserPrivateKeyController.test.js
new file mode 100644
index 00000000..c22fd21a
--- /dev/null
+++ b/src/all/background_page/controller/crypto/getUserPrivateKeyController.test.js
@@ -0,0 +1,64 @@
+/**
+ * Passbolt ~ Open source password manager for teams
+ * Copyright (c) Passbolt SA (https://www.passbolt.com)
+ *
+ * Licensed under GNU Affero General Public License version 3 of the or any later version.
+ * For full copyright and license information, please see the LICENSE.txt
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright (c) Passbolt SA (https://www.passbolt.com)
+ * @license       https://opensource.org/licenses/AGPL-3.0 AGPL License
+ * @link          https://www.passbolt.com Passbolt(tm)
+ * @since         4.3.0
+ */
+import {enableFetchMocks} from "jest-fetch-mock";
+import {pgpKeys} from "../../../../../test/fixtures/pgpKeys/keys";
+import MockExtension from "../../../../../test/mocks/mockExtension";
+import Keyring from '../../model/keyring';
+import GetGpgKeyInfoService from "../../service/crypto/getGpgKeyInfoService";
+import {v4 as uuidv4} from "uuid";
+import {OpenpgpAssertion} from "../../utils/openpgp/openpgpAssertions";
+import GetUserPrivateKeyController from "./getUserPrivateKeyController";
+import GpgKeyError from "../../error/GpgKeyError";
+import AccountEntity from "../../model/entity/account/accountEntity";
+import {adminAccountDto} from "../../model/entity/account/accountEntity.test.data";
+
+const keyring = new Keyring();
+jest.mock("../../service/passphrase/getPassphraseService");
+
+beforeAll(() => {
+  enableFetchMocks();
+});
+
+describe("GetUserPrivateKeyController", () => {
+  const account = new AccountEntity(adminAccountDto());
+  it(`Should return the user's armored encrypted private key`, async() => {
+    expect.assertions(1);
+    const userId = uuidv4();
+    await MockExtension.withConfiguredAccount();
+    await keyring.importPrivate(pgpKeys.ada.private, userId);
+
+    const controller = new GetUserPrivateKeyController(null, null, account);
+    controller.getPassphraseService.requestPassphrase.mockResolvedValue(pgpKeys.ada.passphrase);
+    const armoredPrivateKey = await controller.exec();
+
+    const adaPrivateKey = await OpenpgpAssertion.readKeyOrFail(pgpKeys.ada.private);
+    const adaKeyInfo = await GetGpgKeyInfoService.getKeyInfo(adaPrivateKey);
+
+    const returnedKey = await OpenpgpAssertion.readKeyOrFail(armoredPrivateKey);
+    const returnedKeyInfo = await GetGpgKeyInfoService.getKeyInfo(returnedKey);
+
+    expect(returnedKeyInfo.toDto()).toStrictEqual(adaKeyInfo.toDto());
+  });
+
+  it(`Should throw an exception if the private key does not exist`, async() => {
+    expect.assertions(1);
+    const controller = new GetUserPrivateKeyController(null, null, account);
+
+    try {
+      await controller.exec();
+    } catch (error) {
+      expect(error).toStrictEqual(new GpgKeyError('Private key not found.'));
+    }
+  });
+});
diff --git a/src/all/background_page/event/keyringEvents.js b/src/all/background_page/event/keyringEvents.js
index ebbc45b4..8491ee7a 100644
--- a/src/all/background_page/event/keyringEvents.js
+++ b/src/all/background_page/event/keyringEvents.js
@@ -5,13 +5,12 @@
  * @copyright (c) 2019 Passbolt SA
  * @licence GNU Affero General Public License http://www.gnu.org/licenses/agpl-3.0.en.html
  */
-import Keyring from "../model/keyring";
-import GetPassphraseService from "../service/passphrase/getPassphraseService";
 import CheckPassphraseController from "../controller/crypto/checkPassphraseController";
 import GetUserKeyInfoController from "../controller/crypto/getUserKeyInfoController";
 import GetKeyInfoController from "../controller/crypto/getKeyInfoController";
 import DownloadUserPublicKeyController from "../controller/crypto/downloadUserPublicKeyController";
 import DownloadUserPrivateKeyController from "../controller/crypto/downloadUserPrivateKeyController";
+import GetUserPrivateKeyController from "../controller/crypto/getUserPrivateKeyController";
 
 const listen = function(worker, _, account) {
   /*
@@ -97,18 +96,8 @@ const listen = function(worker, _, account) {
    * @param requestId {uuid} The request identifier
    */
   worker.port.on('passbolt.keyring.get-private-key', async requestId => {
-    try {
-      const getPassphraseService = new GetPassphraseService(account);
-      await getPassphraseService.request(worker);
-      const keyring = new Keyring();
-      const privateKeyInfo = keyring.findPrivate();
-      if (!privateKeyInfo) {
-        throw new Error('Private key not found.');
-      }
-      worker.port.emit(requestId, 'SUCCESS', privateKeyInfo.armoredKey);
-    } catch (error) {
-      worker.port.emit(requestId, 'ERROR', error);
-    }
+    const controller = new GetUserPrivateKeyController(worker, requestId, account);
+    await controller._exec();
   });
 };
 export const KeyringEvents = {listen};